-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
/* pdfdocument.h: Implementation of EvDocument for PDF
* Copyright (C) 2004, Red Hat, Inc.
*
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <glib/gi18n.h>
+
#include "gpdf-g-switch.h"
#include "pdf-document.h"
+#include "ev-ps-exporter.h"
+#include "ev-document-find.h"
#include "gpdf-g-switch.h"
+#include "ev-document-links.h"
+#include "ev-document-misc.h"
+#include "ev-document-security.h"
+#include "ev-document-thumbnails.h"
#include "GlobalParams.h"
#include "GDKSplashOutputDev.h"
+#include "SplashBitmap.h"
#include "PDFDoc.h"
+#include "Outline.h"
+#include "ErrorCodes.h"
+#include "UnicodeMap.h"
+#include "GlobalParams.h"
+#include "GfxState.h"
+#include "Thumb.h"
+#include "goo/GList.h"
+#include "PSOutputDev.h"
+
+enum {
+ PROP_0,
+ PROP_TITLE
+};
+
+typedef struct
+{
+ PdfDocument *document;
+ gunichar *ucs4;
+ glong ucs4_len;
+ guint idle;
+ /* full results are only possible for the rendered current page */
+ int current_page;
+ GArray *current_page_results;
+ guchar *other_page_flags; /* length n_pages + 1, first element ignored */
+ int start_page; /* skip this one as we iterate, since we did it first */
+ int search_page; /* the page we're searching now */
+ TextOutputDev *output_dev;
+} PdfDocumentSearch;
typedef struct _PdfDocumentClass PdfDocumentClass;
GdkDrawable *target;
GDKSplashOutputDev *out;
+ PSOutputDev *ps_out;
PDFDoc *doc;
+ Links *links;
+ UnicodeMap *umap;
+ gchar *password;
gboolean page_valid;
+
+ PdfDocumentSearch *search;
};
-static void pdf_document_document_iface_init (EvDocumentIface *iface);
+static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface);
+static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
+static void pdf_document_document_iface_init (EvDocumentIface *iface);
+static void pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface);
+static void pdf_document_find_iface_init (EvDocumentFindIface *iface);
+static void pdf_document_security_iface_init (EvDocumentSecurityIface *iface);
+static void pdf_document_search_free (PdfDocumentSearch *search);
+static void pdf_document_search_page_changed (PdfDocumentSearch *search);
+
G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
- { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
- pdf_document_document_iface_init) });
+ {
+ G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
+ pdf_document_document_iface_init);
+ G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
+ pdf_document_document_links_iface_init);
+ G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
+ pdf_document_document_thumbnails_iface_init);
+ G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
+ pdf_document_ps_exporter_iface_init);
+ G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
+ pdf_document_find_iface_init);
+ G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
+ pdf_document_security_iface_init);
+ });
+
+static void
+document_init_links (PdfDocument *pdf_document)
+{
+ Page *page;
+ Object obj;
+
+ if (pdf_document->links) {
+ delete pdf_document->links;
+ }
+ page = pdf_document->doc->getCatalog ()->getPage (pdf_document->page);
+ pdf_document->links = new Links (page->getAnnots (&obj),
+ pdf_document->doc->getCatalog ()->getBaseURI ());
+ obj.free ();
+}
static gboolean
document_validate_page (PdfDocument *pdf_document)
72 * pdf_document->scale,
72 * pdf_document->scale,
0, gTrue, gTrue);
-
+
+ document_init_links (pdf_document);
+
pdf_document->page_valid = TRUE;
+
+ ev_document_changed (EV_DOCUMENT (pdf_document));
+
+ /* Update the search results available to the app since
+ * we only provide full results on the current page
+ */
+ if (pdf_document->search)
+ pdf_document_search_page_changed (pdf_document->search);
}
+
+ return pdf_document->page_valid;
}
static gboolean
int err;
char *filename;
GString *filename_g;
-
+ GString *enc;
+
if (!globalParams) {
globalParams = new GlobalParams("/etc/xpdfrc");
globalParams->setupBaseFontsFc(NULL);
}
+ if (! pdf_document->umap) {
+ enc = new GString("UTF-8");
+ pdf_document->umap = globalParams->getUnicodeMap(enc);
+ pdf_document->umap->incRefCnt ();
+ delete enc;
+ }
+
filename = g_filename_from_uri (uri, NULL, error);
if (!filename)
return FALSE;
g_free (filename);
// open the PDF file, assumes ownership of filename_g
- newDoc = new PDFDoc(filename_g, 0, 0);
+ GString *password = NULL;
+ if (pdf_document->password)
+ password = new GString (pdf_document->password);
+ newDoc = new PDFDoc(filename_g, password, password);
+ if (password)
+ delete password;
if (!newDoc->isOk()) {
err = newDoc->getErrorCode();
delete newDoc;
+ if (err == errEncrypted) {
+ g_set_error (error, EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_ENCRYPTED,
+ "Document is encrypted.");
+ } else {
+ g_set_error (error, G_FILE_ERROR,
+ G_FILE_ERROR_FAILED,
+ "Failed to load document (error %d) '%s'\n",
+ err,
+ uri);
+ }
- /* FIXME: Add a real error enum to EvDocument */
- g_set_error (error, G_FILE_ERROR,
- G_FILE_ERROR_FAILED,
- "Failed to load document (error %d) '%s'\n",
- err,
- uri);
-
return FALSE;
}
pdf_document->out->startDoc(pdf_document->doc->getXRef());
pdf_document->page_valid = FALSE;
-
+
+ g_object_notify (G_OBJECT (pdf_document), "title");
+
return TRUE;
}
+static gboolean
+pdf_document_save (EvDocument *document,
+ const char *uri,
+ GError **error)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document);
+ char *filename;
+ gboolean retval = FALSE;
+
+ filename = g_filename_from_uri (uri, NULL, error);
+ if (filename != NULL) {
+ GString *fname = new GString (filename);
+
+ retval = pdf_document->doc->saveAs (fname);
+ }
+
+ return retval;
+}
+
static int
pdf_document_get_n_pages (EvDocument *document)
{
pdf_document->page = page;
pdf_document->page_valid = FALSE;
}
-
}
static int
GdkDrawable *target)
{
PdfDocument *pdf_document = PDF_DOCUMENT (document);
-
+
if (pdf_document->target != target) {
if (pdf_document->target)
g_object_unref (pdf_document->target);
-
+
pdf_document->target = target;
if (pdf_document->target)
double scale)
{
PdfDocument *pdf_document = PDF_DOCUMENT (document);
-
+
if (pdf_document->scale != scale) {
pdf_document->scale = scale;
pdf_document->page_valid = FALSE;
int y)
{
PdfDocument *pdf_document = PDF_DOCUMENT (document);
-
+
pdf_document->page_x_offset = x;
pdf_document->page_y_offset = y;
}
if (!document_validate_page (pdf_document) || !pdf_document->target)
return;
-
+
page.x = pdf_document->page_x_offset;
page.y = pdf_document->page_y_offset;
page.width = pdf_document->out->getBitmapWidth();
draw.y = clip_y;
draw.width = clip_width;
draw.height = clip_height;
-
+
if (gdk_rectangle_intersect (&page, &draw, &draw))
pdf_document->out->redraw (draw.x - page.x, draw.y - page.y,
pdf_document->target,
}
static void
-pdf_document_begin_find (EvDocument *document,
- const char *search_string,
- gboolean case_sensitive)
+pdf_document_search_emit_found (PdfDocumentSearch *search)
{
- /* FIXME make this incremental (idle handler) and multi-page */
- /* Right now it's fully synchronous plus only does the current page */
-
- PdfDocument *pdf_document = PDF_DOCUMENT (document);
- gunichar *ucs4;
- glong ucs4_len;
- int xMin, yMin, xMax, yMax;
- GArray *results;
- EvFindResult result;
+ PdfDocument *pdf_document = search->document;
+ int n_pages;
+ int pages_done;
+ GArray *tmp_results;
+ int i;
+
+ n_pages = ev_document_get_n_pages (EV_DOCUMENT (search->document));
+ if (search->search_page > search->start_page) {
+ pages_done = search->search_page - search->start_page;
+ } else if (search->search_page == search->start_page) {
+ pages_done = n_pages;
+ } else {
+ pages_done = n_pages - search->start_page + search->search_page;
+ }
- /* FIXME case_sensitive (right now XPDF
- * code is always case insensitive for ASCII
- * and case sensitive for all other languaages)
+ tmp_results = g_array_new (FALSE, FALSE, sizeof (EvFindResult));
+ g_array_append_vals (tmp_results,
+ search->current_page_results->data,
+ search->current_page_results->len);
+
+ /* Now append a bogus element for each page that has a result in it,
+ * that is not the current page
*/
-
- g_assert (sizeof (gunichar) == sizeof (Unicode));
- ucs4 = g_utf8_to_ucs4_fast (search_string, -1,
- &ucs4_len);
+ i = 1;
+ while (i <= n_pages) {
+ if (i != pdf_document->page &&
+ search->other_page_flags[i]) {
+ EvFindResult result;
+
+ result.page_num = i;
+
+ /* Use bogus coordinates, again we can't get coordinates
+ * until this is the current page because TextOutputDev
+ * isn't good enough
+ */
+ result.highlight_area.x = -1;
+ result.highlight_area.y = -1;
+ result.highlight_area.width = 1;
+ result.highlight_area.height = 1;
+
+ g_array_append_val (tmp_results, result);
+ }
+
+ ++i;
+ }
+
+ ev_document_find_found (EV_DOCUMENT_FIND (pdf_document),
+ (EvFindResult*) tmp_results->data,
+ tmp_results->len,
+ pages_done / (double) n_pages);
+
+ g_array_free (tmp_results, TRUE);
+}
+
+static void
+pdf_document_search_page_changed (PdfDocumentSearch *search)
+{
+ PdfDocument *pdf_document = search->document;
+ int current_page;
+ EvFindResult result;
+ int xMin, yMin, xMax, yMax;
- results = g_array_new (FALSE,
- FALSE,
- sizeof (EvFindResult));
+ current_page = pdf_document->page;
- if (pdf_document->out->findText (ucs4, ucs4_len,
+ if (!pdf_document->page_valid) {
+ /* we can't do anything until displayPage() */
+ search->current_page = -1;
+ return;
+ }
+
+ if (search->current_page == current_page)
+ return;
+
+ /* We need to create current_page_results for the new current page */
+ g_array_set_size (search->current_page_results, 0);
+
+ if (pdf_document->out->findText (search->ucs4, search->ucs4_len,
gTrue, gTrue, // startAtTop, stopAtBottom
gFalse, gFalse, // startAtLast, stopAtLast
&xMin, &yMin, &xMax, &yMax)) {
-
result.page_num = pdf_document->page;
- result.highlight_area.x = xMin;
- result.highlight_area.y = yMin;
+ result.highlight_area.x = xMin + pdf_document->page_x_offset;
+ result.highlight_area.y = yMin + pdf_document->page_y_offset;
result.highlight_area.width = xMax - xMin;
result.highlight_area.height = yMax - yMin;
- g_array_append_val (results, result);
-
+ g_array_append_val (search->current_page_results, result);
/* Now find further results */
- while (pdf_document->out->findText (ucs4, ucs4_len,
+ while (pdf_document->out->findText (search->ucs4, search->ucs4_len,
gFalse, gTrue,
gTrue, gFalse,
&xMin, &yMin, &xMax, &yMax)) {
-
+
result.page_num = pdf_document->page;
-
- result.highlight_area.x = xMin;
- result.highlight_area.y = yMin;
+
+ result.highlight_area.x = xMin + pdf_document->page_x_offset;
+ result.highlight_area.y = yMin + pdf_document->page_y_offset;
result.highlight_area.width = xMax - xMin;
result.highlight_area.height = yMax - yMin;
-
- g_array_append_val (results, result);
+
+ g_array_append_val (search->current_page_results, result);
}
}
- ev_document_found (document,
- (EvFindResult*) results->data,
- results->len,
- 1.0);
+ /* needed for the initial current page since we don't search
+ * it in the idle
+ */
+ search->other_page_flags[current_page] =
+ search->current_page_results->len > 0;
- g_array_free (results, TRUE);
+ pdf_document_search_emit_found (search);
+}
+
+static gboolean
+pdf_document_search_idle_callback (void *data)
+{
+ PdfDocumentSearch *search = (PdfDocumentSearch*) data;
+ PdfDocument *pdf_document = search->document;
+ int n_pages;
+ double xMin, yMin, xMax, yMax;
+
+ /* Note that PDF page count is 1 through n_pages INCLUSIVE
+ * like a real book. We are looking to add one result for each
+ * page with a match, because the coordinates are meaningless
+ * with TextOutputDev, so we just want to flag matching pages
+ * and then when the user switches to the current page, we
+ * will emit "found" again with the real results.
+ */
+ n_pages = ev_document_get_n_pages (EV_DOCUMENT (search->document));
+
+ if (search->search_page == search->start_page) {
+ goto end_search;
+ }
+
+ if (search->output_dev == 0) {
+ /* First time through here... */
+ search->output_dev = new TextOutputDev (NULL, gTrue, gFalse, gFalse);
+ if (!search->output_dev->isOk()) {
+ goto end_search;
+ }
+ }
+
+ pdf_document->doc->displayPage (search->output_dev,
+ search->search_page,
+ 72, 72, 0, gTrue, gFalse);
+
+ if (search->output_dev->findText (search->ucs4,
+ search->ucs4_len,
+ gTrue, gTrue, // startAtTop, stopAtBottom
+ gFalse, gFalse, // startAtLast, stopAtLast
+ &xMin, &yMin, &xMax, &yMax)) {
+ /* This page has results */
+ search->other_page_flags[search->search_page] = TRUE;
+ }
+
+ search->search_page += 1;
+ if (search->search_page > n_pages) {
+ /* wrap around */
+ search->search_page = 1;
+ }
+
+ /* We do this even if nothing was found, to update the percent complete */
+ pdf_document_search_emit_found (search);
+
+ return TRUE;
+
+ end_search:
+ /* We're done. */
+ search->idle = 0; /* will return FALSE to remove */
+ return FALSE;
}
static void
-pdf_document_end_find (EvDocument *document)
+pdf_document_find_begin (EvDocumentFind *document,
+ const char *search_string,
+ gboolean case_sensitive)
{
PdfDocument *pdf_document = PDF_DOCUMENT (document);
+ PdfDocumentSearch *search;
+ int n_pages;
+ gunichar *ucs4;
+ glong ucs4_len;
+
+ /* FIXME handle case_sensitive (right now XPDF
+ * code is always case insensitive for ASCII
+ * and case sensitive for all other languaages)
+ */
+
+ g_assert (sizeof (gunichar) == sizeof (Unicode));
+ ucs4 = g_utf8_to_ucs4_fast (search_string, -1,
+ &ucs4_len);
+
+ if (pdf_document->search &&
+ pdf_document->search->ucs4_len == ucs4_len &&
+ memcmp (pdf_document->search->ucs4,
+ ucs4,
+ sizeof (gunichar) * ucs4_len) == 0) {
+ /* Search is unchanged */
+ g_free (ucs4);
+ return;
+ }
+
+ if (pdf_document->search) {
+ pdf_document_search_free (pdf_document->search);
+ pdf_document->search = NULL;
+ }
+
+ search = g_new0 (PdfDocumentSearch, 1);
+
+ search->ucs4 = ucs4;
+ search->ucs4_len = ucs4_len;
- /* FIXME this will do something once begin_find queues
- * an incremental find
+ search->current_page_results = g_array_new (FALSE,
+ FALSE,
+ sizeof (EvFindResult));
+ n_pages = ev_document_get_n_pages (EV_DOCUMENT (document));
+
+ /* This is an array of bool; with the first value ignored
+ * so we can index by the based-at-1 page numbers
*/
+ search->other_page_flags = g_new0 (guchar, n_pages + 1);
+
+ search->document = pdf_document;
+
+ /* We add at low priority so the progress bar repaints */
+ search->idle = g_idle_add_full (G_PRIORITY_LOW,
+ pdf_document_search_idle_callback,
+ search,
+ NULL);
+
+ search->output_dev = 0;
+
+ search->start_page = pdf_document->page;
+ search->search_page = search->start_page + 1;
+ if (search->search_page > n_pages)
+ search->search_page = 1;
- // this should probably be shared among EvDocument
- // implementations somehow?
- ev_document_found (document, NULL, 0, 1.0);
+ search->current_page = -1;
+
+ pdf_document->search = search;
+
+ /* Update for the current page right away */
+ pdf_document_search_page_changed (search);
+}
+
+static void
+pdf_document_find_cancel (EvDocumentFind *document)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document);
+
+ if (pdf_document->search) {
+ pdf_document_search_free (pdf_document->search);
+ pdf_document->search = NULL;
+ }
+}
+
+static void
+pdf_document_search_free (PdfDocumentSearch *search)
+{
+ if (search->idle != 0)
+ g_source_remove (search->idle);
+
+ if (search->output_dev)
+ delete search->output_dev;
+
+ g_array_free (search->current_page_results, TRUE);
+ g_free (search->other_page_flags);
+
+ g_free (search->ucs4);
+ g_free (search);
+}
+
+static gboolean
+pdf_document_has_document_security (EvDocumentSecurity *document_security)
+{
+ /* FIXME: do we really need to have this? */
+ return FALSE;
+}
+
+static void
+pdf_document_set_password (EvDocumentSecurity *document_security,
+ const char *password)
+{
+ PdfDocument *document = PDF_DOCUMENT (document_security);
+
+ if (document->password)
+ g_free (document->password);
+
+ document->password = g_strdup (password);
+}
+
+static void
+pdf_document_ps_export_begin (EvPSExporter *exporter, const char *filename)
+{
+ PdfDocument *document = PDF_DOCUMENT (exporter);
+
+ if (document->ps_out)
+ delete document->ps_out;
+
+ document->ps_out = new PSOutputDev ((char *)filename, document->doc->getXRef(),
+ document->doc->getCatalog(), 1,
+ ev_document_get_n_pages (EV_DOCUMENT (document)),
+ psModePS);
+}
+
+static void
+pdf_document_ps_export_do_page (EvPSExporter *exporter, int page)
+{
+ PdfDocument *document = PDF_DOCUMENT (exporter);
+
+ document->doc->displayPage (document->ps_out, page,
+ 72.0, 72.0, 0, gTrue, gFalse);
+}
+
+static void
+pdf_document_ps_export_end (EvPSExporter *exporter)
+{
+ PdfDocument *document = PDF_DOCUMENT (exporter);
+
+ delete document->ps_out;
+ document->ps_out = NULL;
+}
+
+
+/* EvDocumentLinks Implementation */
+typedef struct
+{
+ /* goo GList, not glib */
+ GList *items;
+ int index;
+ int level;
+} LinksIter;
+
+static gchar *
+unicode_to_char (OutlineItem *outline_item,
+ UnicodeMap *uMap)
+{
+ GString gstr;
+ gchar buf[8]; /* 8 is enough for mapping an unicode char to a string */
+ int i, n;
+
+ for (i = 0; i < outline_item->getTitleLength(); ++i) {
+ n = uMap->mapUnicode(outline_item->getTitle()[i], buf, sizeof(buf));
+ gstr.append(buf, n);
+ }
+
+ return g_strdup (gstr.getCString ());
+}
+
+
+static gboolean
+pdf_document_links_has_document_links (EvDocumentLinks *document_links)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
+ Outline *outline;
+
+ g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
+
+ outline = pdf_document->doc->getOutline();
+ if (outline->getItems() != NULL &&
+ outline->getItems()->getLength() > 0)
+ return TRUE;
+
+ return FALSE;
+}
+
+static EvDocumentLinksIter *
+pdf_document_links_begin_read (EvDocumentLinks *document_links)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
+ Outline *outline;
+ LinksIter *iter;
+ GList *items;
+
+ g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
+
+ outline = pdf_document->doc->getOutline();
+ items = outline->getItems();
+ if (! items)
+ return NULL;
+
+ iter = g_new0 (LinksIter, 1);
+ iter->items = items;
+ iter->index = 0;
+ iter->level = 0;
+
+ return (EvDocumentLinksIter *) iter;
+}
+
+static EvLink *
+build_link_from_action (PdfDocument *pdf_document,
+ LinkAction *link_action,
+ const char *title)
+{
+ EvLink *link = NULL;
+
+ if (link_action == NULL) {
+ link = ev_link_new_title (title);
+ } else if (link_action->getKind () == actionGoTo) {
+ LinkDest *link_dest;
+ LinkGoTo *link_goto;
+ Ref page_ref;
+ gint page_num = 0;
+ GString *named_dest;
+
+ link_goto = dynamic_cast <LinkGoTo *> (link_action);
+ link_dest = link_goto->getDest ();
+ named_dest = link_goto->getNamedDest ();
+
+ /* Wow! This seems excessively slow on large
+ * documents. I need to investigate more... -jrb */
+ if (link_dest != NULL) {
+ link_dest = link_dest->copy ();
+ } else if (named_dest != NULL) {
+ named_dest = named_dest->copy ();
+ link_dest = pdf_document->doc->findDest (named_dest);
+ delete named_dest;
+ }
+ if (link_dest != NULL) {
+ if (link_dest->isPageRef ()) {
+ page_ref = link_dest->getPageRef ();
+ page_num = pdf_document->doc->findPage (page_ref.num, page_ref.gen);
+ } else {
+ page_num = link_dest->getPageNum ();
+ }
+ delete link_dest;
+ }
+
+ link = ev_link_new_page (title, page_num);
+ } else if (link_action->getKind () == actionURI) {
+ LinkURI *link_uri;
+
+ link_uri = dynamic_cast <LinkURI *> (link_action);
+ link = ev_link_new_external
+ (title, link_uri->getURI()->getCString());
+ } else if (link_action->getKind () == actionNamed) {
+ /*Skip, for now */
+ }
+
+ return link;
+}
+
+/* FIXME This returns a new object every time, probably we should cache it
+ in the iter */
+static EvLink *
+pdf_document_links_get_link (EvDocumentLinks *document_links,
+ EvDocumentLinksIter *links_iter)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
+ LinksIter *iter = (LinksIter *)links_iter;
+ OutlineItem *anItem;
+ LinkAction *link_action;
+ Unicode *link_title;
+ const char *title;
+
+ g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
+ g_return_val_if_fail (iter != NULL, FALSE);
+
+ anItem = (OutlineItem *)iter->items->get(iter->index);
+ link_action = anItem->getAction ();
+ link_title = anItem->getTitle ();
+ title = unicode_to_char (anItem, pdf_document->umap);
+
+ return build_link_from_action (pdf_document, link_action, title);
+}
+
+static EvDocumentLinksIter *
+pdf_document_links_get_child (EvDocumentLinks *document_links,
+ EvDocumentLinksIter *links_iter)
+{
+ LinksIter *iter = (LinksIter *)links_iter;
+ LinksIter *child_iter;
+ OutlineItem *anItem;
+
+ g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
+
+ anItem = (OutlineItem *)iter->items->get(iter->index);
+ anItem->open ();
+ if (! (anItem->hasKids() && anItem->getKids()) )
+ return NULL;
+
+ child_iter = g_new0 (LinksIter, 1);
+ child_iter->index = 0;
+ child_iter->level = iter->level + 1;
+ child_iter->items = anItem->getKids ();
+ g_assert (child_iter->items);
+
+ return (EvDocumentLinksIter *) child_iter;
+}
+
+static gboolean
+pdf_document_links_next (EvDocumentLinks *document_links,
+ EvDocumentLinksIter *links_iter)
+{
+ LinksIter *iter = (LinksIter *) links_iter;
+
+ g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
+
+ iter->index++;
+ if (iter->index >= iter->items->getLength())
+ return FALSE;
+
+ return TRUE;
+}
+
+static void
+pdf_document_links_free_iter (EvDocumentLinks *document_links,
+ EvDocumentLinksIter *iter)
+{
+ g_return_if_fail (PDF_IS_DOCUMENT (document_links));
+ g_return_if_fail (iter != NULL);
+
+ /* FIXME: Should I close all the nodes?? Free them? */
+ g_free (iter);
}
static void
{
PdfDocument *pdf_document = PDF_DOCUMENT (object);
+ if (pdf_document->links) {
+ delete pdf_document->links;
+ }
+
+ if (pdf_document->umap) {
+ pdf_document->umap->decRefCnt ();
+ pdf_document->umap = NULL;
+ }
+
+ if (pdf_document->search)
+ pdf_document_search_free (pdf_document->search);
+
if (pdf_document->target)
g_object_unref (pdf_document->target);
if (pdf_document->out)
delete pdf_document->out;
+ if (pdf_document->ps_out)
+ delete pdf_document->ps_out;
if (pdf_document->doc)
delete pdf_document->doc;
}
+static void
+pdf_document_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ switch (prop_id)
+
+ {
+ case PROP_TITLE:
+ /* read only */
+ break;
+ }
+}
+
+static gboolean
+has_unicode_marker (GString *string)
+{
+ return ((string->getChar (0) & 0xff) == 0xfe &&
+ (string->getChar (1) & 0xff) == 0xff);
+}
+
+static gchar *
+pdf_info_dict_get_string (Dict *info_dict, const gchar *key) {
+ Object obj;
+ GString *value;
+ gchar *result;
+
+ g_return_val_if_fail (info_dict != NULL, NULL);
+ g_return_val_if_fail (key != NULL, NULL);
+
+ if (!info_dict->lookup ((gchar *)key, &obj)->isString ()) {
+ obj.free ();
+ return NULL;
+ }
+
+ value = obj.getString ();
+
+ if (has_unicode_marker (value)) {
+ result = g_convert (value->getCString () + 2,
+ value->getLength () - 2,
+ "UTF-8", "UTF-16BE", NULL, NULL, NULL);
+ } else {
+ result = g_strndup (value->getCString (), value->getLength ());
+ }
+
+ obj.free ();
+
+ return result;
+}
+
+static char *
+pdf_document_get_title (PdfDocument *pdf_document)
+{
+ char *title = NULL;
+ Object info;
+
+ pdf_document->doc->getDocInfo (&info);
+
+ if (info.isDict ()) {
+ title = pdf_info_dict_get_string (info.getDict(), "Title");
+ }
+
+ return title;
+}
+
+static char *
+pdf_document_get_text (EvDocument *document, GdkRectangle *rect)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document);
+ GString *sel_text = new GString;
+ const char *text;
+ int x1, y1, x2, y2;
+
+ x1 = rect->x + pdf_document->page_x_offset;
+ y1 = rect->y + pdf_document->page_y_offset;
+ x2 = x1 + rect->width + pdf_document->page_x_offset;
+ y2 = y1 + rect->height + pdf_document->page_y_offset;
+
+ sel_text = pdf_document->out->getText (x1, y1, x2, y2);
+ text = sel_text->getCString ();
+
+ return text ? g_strdup (text) : NULL;
+}
+
+static EvLink *
+pdf_document_get_link (EvDocument *document, int x, int y)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document);
+ LinkAction *action;
+ double link_x, link_y;
+
+ /* Zoom */
+ link_x = x / pdf_document->scale;
+ link_y = y / pdf_document->scale;
+
+ /* Offset */
+ link_x -= pdf_document->page_x_offset;
+ link_y -= pdf_document->page_y_offset;
+
+ /* Inverse y */
+ link_y = pdf_document->out->getBitmapHeight() - link_y;
+
+ action = pdf_document->links->find (link_x, link_y);
+
+ if (action) {
+ return build_link_from_action (pdf_document, action, "");
+ } else {
+ return NULL;
+ }
+}
+
+static void
+pdf_document_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (object);
+ char *title;
+
+ switch (prop_id)
+ {
+ case PROP_TITLE:
+ title = pdf_document_get_title (pdf_document);
+ g_value_set_string (value, title);
+ g_free (title);
+ break;
+ }
+}
+
static void
pdf_document_class_init (PdfDocumentClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
+
gobject_class->finalize = pdf_document_finalize;
+ gobject_class->get_property = pdf_document_get_property;
+ gobject_class->set_property = pdf_document_set_property;
+
+ g_object_class_override_property (gobject_class, PROP_TITLE, "title");
}
static void
pdf_document_document_iface_init (EvDocumentIface *iface)
{
iface->load = pdf_document_load;
+ iface->save = pdf_document_save;
+ iface->get_text = pdf_document_get_text;
+ iface->get_link = pdf_document_get_link;
iface->get_n_pages = pdf_document_get_n_pages;
iface->set_page = pdf_document_set_page;
iface->get_page = pdf_document_get_page;
iface->set_page_offset = pdf_document_set_page_offset;
iface->get_page_size = pdf_document_get_page_size;
iface->render = pdf_document_render;
- iface->begin_find = pdf_document_begin_find;
- iface->end_find = pdf_document_end_find;
}
+static void
+pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface)
+{
+ iface->begin = pdf_document_ps_export_begin;
+ iface->do_page = pdf_document_ps_export_do_page;
+ iface->end = pdf_document_ps_export_end;
+}
+
+
+static void
+pdf_document_find_iface_init (EvDocumentFindIface *iface)
+{
+ iface->begin = pdf_document_find_begin;
+ iface->cancel = pdf_document_find_cancel;
+}
+
+static void
+pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
+{
+ iface->has_document_security = pdf_document_has_document_security;
+ iface->set_password = pdf_document_set_password;
+}
+
+static void
+pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
+{
+ iface->has_document_links = pdf_document_links_has_document_links;
+ iface->begin_read = pdf_document_links_begin_read;
+ iface->get_link = pdf_document_links_get_link;
+ iface->get_child = pdf_document_links_get_child;
+ iface->next = pdf_document_links_next;
+ iface->free_iter = pdf_document_links_free_iter;
+}
+
+/* Thumbnails */
+
+static GdkPixbuf *
+bitmap_to_pixbuf (SplashBitmap *bitmap,
+ GdkPixbuf *target,
+ gint x_offset,
+ gint y_offset)
+{
+ gint width;
+ gint height;
+ SplashColorPtr dataPtr;
+ int x, y;
+
+ gboolean target_has_alpha;
+ gint target_rowstride;
+ guchar *target_data;
+
+ width = bitmap->getWidth ();
+ height = bitmap->getHeight ();
+
+ if (width + x_offset > gdk_pixbuf_get_width (target))
+ width = gdk_pixbuf_get_width (target) - x_offset;
+ if (height + y_offset > gdk_pixbuf_get_height (target))
+ height = gdk_pixbuf_get_height (target) - x_offset;
+
+ target_has_alpha = gdk_pixbuf_get_has_alpha (target);
+ target_rowstride = gdk_pixbuf_get_rowstride (target);
+ target_data = gdk_pixbuf_get_pixels (target);
+
+ dataPtr = bitmap->getDataPtr ();
+
+ for (y = 0; y < height; y++) {
+ SplashRGB8 *p;
+ SplashRGB8 rgb;
+ guchar *q;
+
+ p = dataPtr.rgb8 + y * width;
+ q = target_data + ((y + y_offset) * target_rowstride +
+ x_offset * (target_has_alpha?4:3));
+ for (x = 0; x < width; x++) {
+ rgb = *p++;
+
+ *q++ = splashRGB8R (rgb);
+ *q++ = splashRGB8G (rgb);
+ *q++ = splashRGB8B (rgb);
+
+ if (target_has_alpha)
+ q++;
+ }
+ }
+
+ return target;
+}
+
+
+static GdkPixbuf *
+pdf_document_thumbnails_get_page_pixbuf (PdfDocument *pdf_document,
+ gdouble scale_factor,
+ gint page_num,
+ gint width,
+ gint height)
+{
+ SplashOutputDev *output;
+ GdkPixbuf *pixbuf;
+ SplashColor color;
+
+ color.rgb8 = splashMakeRGB8 (255, 255, 255);
+
+ output = new SplashOutputDev (splashModeRGB8, gFalse, color);
+ output->startDoc (pdf_document->doc->getXRef());
+ pdf_document->doc->displayPage (output,
+ page_num + 1,
+ 72*scale_factor,
+ 72*scale_factor,
+ 0, gTrue, gFalse);
+
+ pixbuf = ev_document_misc_get_thumbnail_frame (output->getBitmap()->getWidth(),
+ output->getBitmap()->getHeight(),
+ NULL);
+ bitmap_to_pixbuf (output->getBitmap(), pixbuf, 1, 1);
+ delete output;
+
+ return pixbuf;
+}
+
+static void
+pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
+ gint page,
+ gint suggested_width,
+ gint *width,
+ gint *height)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
+ Page *the_page;
+ Object the_thumb;
+ Thumb *thumb = NULL;
+ gdouble page_ratio;
+
+ /* getPage seems to want page + 1 for some reason; */
+ the_page = pdf_document->doc->getCatalog ()->getPage (page + 1);
+ the_page->getThumb (&the_thumb);
+
+ if (!(the_thumb.isNull () || the_thumb.isNone())) {
+ /* Build the thumbnail object */
+ thumb = new Thumb(pdf_document->doc->getXRef (),
+ &the_thumb);
+
+ *width = thumb->getWidth ();
+ *height = thumb->getHeight ();
+ } else {
+ page_ratio = the_page->getHeight () / the_page->getWidth ();
+ *width = suggested_width;
+ *height = (gint) (suggested_width * page_ratio);
+ }
+}
+
+static GdkPixbuf *
+pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
+ gint page,
+ gint width)
+{
+ PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
+ GdkPixbuf *thumbnail;
+ Page *the_page;
+ Object the_thumb;
+ Thumb *thumb = NULL;
+ gboolean have_ethumbs = FALSE;
+ gdouble page_ratio;
+ gint dest_height;
+
+ /* getPage seems to want page + 1 for some reason; */
+ the_page = pdf_document->doc->getCatalog ()->getPage (page + 1);
+ the_page->getThumb(&the_thumb);
+
+ page_ratio = the_page->getHeight () / the_page->getWidth ();
+ dest_height = (gint) (width * page_ratio);
+
+
+ if (!(the_thumb.isNull () || the_thumb.isNone())) {
+ /* Build the thumbnail object */
+ thumb = new Thumb(pdf_document->doc->getXRef (),
+ &the_thumb);
+
+ have_ethumbs = thumb->ok();
+ }
+
+ if (have_ethumbs) {
+ guchar *data;
+ GdkPixbuf *tmp_pixbuf;
+
+ data = thumb->getPixbufData();
+ tmp_pixbuf = gdk_pixbuf_new_from_data (data,
+ GDK_COLORSPACE_RGB,
+ FALSE,
+ 8,
+ thumb->getWidth (),
+ thumb->getHeight (),
+ thumb->getWidth () * 3,
+ NULL, NULL);
+ /* FIXME: do we want to check that the thumb's size isn't ridiculous?? */
+ thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
+ g_object_unref (tmp_pixbuf);
+ } else {
+ gdouble scale_factor;
+
+ scale_factor = (gdouble)width / the_page->getWidth ();
+
+ thumbnail = pdf_document_thumbnails_get_page_pixbuf (pdf_document,
+ scale_factor,
+ page,
+ width,
+ dest_height);
+ }
+
+ return thumbnail;
+}
+static void
+pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
+{
+ iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
+ iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
+}
+
+
static void
pdf_document_init (PdfDocument *pdf_document)
{
pdf_document->page_x_offset = 0;
pdf_document->page_y_offset = 0;
pdf_document->scale = 1.;
-
+
pdf_document->page_valid = FALSE;
+ pdf_document->password = NULL;
}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff